I've bought quite a few sets from mechnicalkeyboards.com. They always have quite a few in stock, and there are always more coming in, if you look at their Incoming Products page. Amazon's been stocking more and more keycaps lately, too. They have a set Qisan dye sub PBT keycaps that are very nice (if you like the old school '90s Apple font), and I saw that they have doubleshot PBT keycaps from Mistel, too, in good old white on black and black on white. Of course there are the usual Chinese knockoffs of various GMK sets, usually done in dye sub or doubleshot PBT. Some of them are very good for the price, but I can completely understand the whole issue of the design having been ripped off.